#include <string>
#include <iostream>
#include <vector>
#include <fstream>

using namespace std;

struct NetworkInfo{
    string devicename;
    string ip;
    string mask;
    int hardwaretype;
    string macaddress;
};

int main(){
    vector<NetworkInfo> ret;
    ifstream input;
    input.open("/proc/net/arp");
    char buf[1024];
    while(!input.eof()){
        input.getline(buf, 1024);
        cout << buf << endl;
    }
    return 0;
}